Can an irrational number be a decimal? if so, give an example.

Only if it is an repeating decimal.
Ex: 2.3 repeated would be an irrational decimal

The full question isn’t shown. part of it is cut off

I'll do the first one for you. it isn't very hard at all.on number one, you have (50 × 3), which equals 150, and (3 × 3), which equals 9. after you establish that, you add 150 and 9 together. so, (150 + 9) equals 159.this means that 53 × 3 = 159.